Hose.



G. E. PRESTON.

HOSE.

APPLICATION TILED MAY 16, 1910.

988,384. Patented Apr. 4, 1911.

n Ll'r'maaea: v g 2 zfzerddn By M?% MM 'liable to decay, I substitute for the rubber ononsninrniesron, or CHICAGO, ILLINOIS, ASSIGNOROF ONE-HALF TO eornronn s."

wooD, or CHICAGO, ILLINOIS.

HOSE.

Specification of Letters Patent.

Application filed May 16, 1910. Serial No. 561,709.

Patented ,A pr.

To all whom it may concern:

Be it known that I, GEORGE E. Pnns'rox, a citizen of the United States, residing in Chicago, inthe county of Cook and State of Illinois, have invented a new and useful Improvement in Hose, of which the following is a specification.

The object of this invention has been to devise a substitute for rubber hose adapted to be used for conducting air under pressure. It has been devised more especially for use in the flexible pipes employed in coupling the air brakes of railroad cars to gether, but it obviously may be used elsewhere. In order torender the hose little in its-manufacture, other flexible material, such for instance as chrome leather; And to render the hose proof against leakage of air I form the body of the hose of two or I'more thicknesses or layers of the leather,

and insert between each two layers a thin imperforate and impervious-sheet ofcelluloid, this sheet being cemented to both of the opposing thicknesses of the body so that such thicknesses or layers and the interposed celluloid become practically one piece and the edges of the sheet are also lapped one upon the other and cemented'together. The leather bodies of the hose are preferably formed in long lengths and wound spirally, the direction of the winding of the inner layer or layers Y being reversed from that of the outer layer or layers. These features of the invention are described fully in the specification below and are also illustrated in the accompanying drawing forming a part of this specification, and in said drawing Figure 1 is a per spective of a section of my improved hose partly broken away. Fig. 2 is a section on the line 2-2 of Fig. 1. Fig. 3 is a perspective of a portion of the leather of one of the tubes in the fiat and with the celluloid sheet applied to its upper face.

In said drawing, 4 represents the'inner layer of the body material and which is first wound spirally or otherwise bent into cylengths sufiicient for the length of hose it is desired to make and cut to a uniform width convenient for winding. After this layer 4t has been formed into cylindrical shape the sheet 5 of thin imperforate and ii'npervious celluloid is wrapped closely around it, a cement solution or preparation being first applied to the inner surface of the celluloid or to the outside of the leather and the edges of the celluloid being also lapped and cemented together. The cement mixture or solution should be such as will unite the celluloid very closely and firmly to the tube. I next take a layer of the leather or other material and Wrap it around the outside of the celluloid, the surface of the celluloid being first smeared or provided with the cementing solution. In wrapping the outsidelayer I exert some pressure by it upon the celluloid, though it need not be severe pressure. If it secures a close union of the celluloid with the body material both inner and outer, that will be sufficient Both the layers of body material are made up in strips of sufficient length for the piece of hose to be made from them and wound spirally, the direction of the winding being reversed in the case of the outer layer from the direction used in the inner layer. This spiral winding increases the flexibility of the hose and renders it suilicient-ly flexible Of course the flexibility will preparation is used it must be one which so will not destroy the integrity of the celluloid sheet nor form openings therein. If properly united the celluloid becomes practically incorporated with the thicknesses of the leather between which it is placed, and

in sodoing it loses even the natural slight stiffness which it possesses before being secured to the body thicknesses, and so becomes flexiblc in all directions and offers no resistance to the bending of the hose, but

of that kind of leather which rendcr it serv- And while I have iceable for use in hose. 1nd1cated a preference for the spirally wound body material, I do not wish to be limited to that construction.

The joints between the different, sheets,

pieces or strips of celluloid which are used in the hose are rendered air tight by lapping and cementing their adjacent edges one upon the other as seen at Fig. 2.

1. The tube for conducting air under pressure consisting of an inner thickness or tube of chrome leather, :2, sheet of flexible impervious celluloid having its edges cemented together and Wrapped around said inner tube of leather, and a second thickness or tube of chrome leather placed outside the celluloid.

terposed between said tubes and cemented to 15 both of them, and also having its ownedges cemented together.

GEORGE E. PRESTON.

Witnesses:

H. M. MUNDAY, E. ABRAMS. 

